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Updated: Jan 15, 2026
09:38
Collection and Analysis of Arabidopsis Phloem Exudates Using the EDTA-facilitated Method
Published on: October 23, 2013
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Phloem Development and Function in Plants: Implications for Flowering, Nitrogen Fixation, and Crop Yield
Hong Li1, Lanxin Li1, Meiling Zhong1
1Guangdong Provincial Key Laboratory of Plant Adaptation and Molecular Design, Guangzhou Key Laboratory of Crop Gene Editing, Innovative Center of Molecular Genetics and Evolution, School of Life Sciences, Guangzhou University, Guangzhou, China.
Plant, Cell & Environment
|October 13, 2025
Summary
Phloem transports sugars and signals like FLOWERING LOCUS T (FT) to regulate plant development and flowering. Understanding phloem function is key to improving crop yield and quality.
Area of Science:
- Plant Biology
- Molecular Physiology
Background:
- Vascular bundles, comprising xylem and phloem, are crucial for transport in tracheophytes.
- Phloem's role in plant development and physiology has seen significant recent advancements.
Purpose of the Study:
- To review genes and proteins controlling phloem cell development and function.
- To highlight phloem's roles in sink organ development, flowering time, and nitrogen fixation.
Main Methods:
- Literature review of gene and protein functions in Arabidopsis and crop plants.
- Discussion of phloem-mediated sugar allocation and FLOWERING LOCUS T (FT) transport.
Main Results:
- Phloem is critical for allocating sugars to sink tissues.
- Phloem transports FT protein to induce flowering.
- Sugar distribution via phloem is vital for nitrogen fixation in legume root nodules.
Conclusions:
- Understanding phloem mechanisms provides insights into plant growth and development.
- Phloem research offers potential strategies for enhancing crop yield and quality.
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